CFPT-9300 Series Lead-Free Miniature High Precision TCXO / TCVCXO
ISSUE 2; 28
th
NOVEMBER 2007
Recommended for new Designs
Delivery Options
Please contact our sales office for current delivery
times.
Description
A series of Lead Free, surface mountable TCXO /
TCVCXO for medium to high volume applications
where small size and high performance are pre-
requisites. This oscillator uses Rakon's latest
custom ASIC "Pluto", a single chip oscillator and
analogue compensation circuit, capable of sub
0.3ppm performance over an extended temperature
range. Its ability to function down to a supply voltage
of 2.4V and low power consumption makes it
particularly suitable for mobile applications.
Frequency
Standard: 10.0 (HCMOS only), 12.688375, 12.8, 13,
14.4, 16, 16.367, 16.384, 16.8, 19.2, 19.44, 20, 24,
24.5535, 26, 32.768, 33.6, 36, 38.88 and 40 MHz
Optional Range 1.5 to 52 MHz
Waveform
Standard
Square HCMOS 15pF load
Clipped sinewave(CS) 10k // 10pF, DC-
coupled
Ageing
±1ppm maximum in first year, frequency
20MHz
±2ppm maximum in first year, frequency
20MHz
±3ppm maximum for 10 years, frequency
20MHz
±5ppm maximum for 10 years, frequency
20MHz
±1ppm maximum after reflow
Frequency Stability
Temperature: see table
Supply Voltage Variation, ±5%
HCMOS, < 20MHz
HCMOS, 20-35MHz
HCMOS, 35-52MHz
Clipped Sinewave
±0.1ppm typ.
±0.3ppm typ.
±0.5ppm typ.
±0.05ppm typ.
Load Coefficient,
15pF ± 5pF (HCMOS) ,
< 20 MHz
20-35 MHz
35-52 MHz
10k // 10pF ± 10% (CS)
±0.2ppm typ.
±0.5ppm typ.
±0.8ppm typ.
±0.05ppm typ.
Optional
Square ACMOS 50pF max. load
Sinewave 10k // 10pF, DC-coupled
Frequency Adjustment,
two options
A
Ageing adjustment by means of external Control
Voltage applied to pad 1 (standard option)
Range (frequency
20MHz)
±5ppm
Range (frequency > 20MHz)
±7ppm
Linearity
2%
Slope
Positive
Input resistance
100k
Modulation bandwidth
2kHz
Standard control voltage range 1.5V±1V
B
No frequency adjustment
Initial calibration
±1.0ppm
Environmental Specification
Vibration: IEC 60068-2-6, test Fc, procedure B4: 10-
60Hz 1.5 mm displacement, 60-2000Hz at 20gn, 4
hours in each of three mutually perpendicular axes
at 1 octave per minute.
Shock: IEC 60068-2-27, test Ea: 1500gn
acceleration for 0.5ms duration, Half-sine pulse, 3
shocks in each direction along three mutually
perpendicular axes.
Soldering: SMD Product suitable for Reflow
soldering. Peak temperature 260°C. Maximum time
above 220°C, 60 sec.
Marking: Laser Marked
RoHS: Parts are fully compliant with the European
Union directive 2002/95/EC on the restriction of the
use of certain hazardous substances in electrical
and electronic equipment. Note: These RoHS
compliant parts are suitable for assembly using both
Lead-free solders and Tin/Lead solders.
Supply Voltage
Operating range 2.4 to 6.0V, see table.
Current Consumption (typically)
HCMOS
1+Frequency(MHz)*Supply(V)*{Load(pF)+15}* 10-3
mA, e.g. 20MHz, 3.3V, 15pF
3 mA
Clipped Sinewave
1+Frequency(MHz)*1.2*{Load(pF)+30}*10-3 mA
e.g. 20MHz, 10pF
2 mA
Package Outline
SMD (surface mount device), ceramic carrier, nom.
dimensions 5.0 x 3.2 x 1.6mm
Optional low profile, nom dimensions 5.0 x 3.2 x
1.4mm
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Storage Temperature Range
-55 to +125°C
Marking,
includes
‘R’ (Manufacturers ID)
Manufacturing identifier (X XX)
Pad 1 / Static sensitivity identifier (Triangle)
Abbreviated Part Number
Oscillator’s Date of Manufacture (YW)
Typical Phase Noise at 14.4 MHz
R X XX
0000 YW
Outline in mm
5.0±0.2
CMAC XX
4000CF
3.2±0.2
Recommended PCB patern
4.5
Reflow Solder Profile
1.8 max
10nF
0.4
3.6
1.2
1.0
1
1.3
2
4
3
Pad
1
2
3
4
Function
Voltage Control (leave unconnected in case the
'no frequency adjust' option has been ordered)
Ground
Output
Supply Voltage, Vs
+Vs
2.5
10nF
Test Circuit
DC cut*
OUT PUT
4
3
Low Profile option, 1.6mm max height.
Note:
for correct operation a 10nF supply de-coupling capacitor
should be placed next to the device, as shown above. If an AC
coupled output is required a 10nF should be placed in series
with output pad 3.
10nF
VS
10nF
V CX O
OUT
CFPT -9300
GND
RL*
CL*
Output Waveform - HCMOS
GND
1
Voltage Control
*DC
cut capacitor required for AC coupled Clipped
sinewave.
*Load
15pF (HCMOS) or 10k // 10pF (Clipped
Sinewave), inclusive of probe and jig capacitance.
www.rakon.com
2
Phase Noise (typical figures)
Frequency
14.4MHz
10Hz
-95 dBc/Hz
Frequency offset from carrier
100Hz
1kHz
10kHz
-115 dBc/Hz
-135 dBc/Hz
-140 dBc/Hz
100kHz
-145 dBc/Hz
Electrical Specification – limiting values when measured in test circuit
Frequency
Supply
Output
Output
Rise Time (tr) Fall time (tf) Duty cycle
Model
Range
Voltage
Waveform
Levels
Number
1)
1.5MHz to
Square
8ns
8ns
45/55%
CFPT-9301
3.3V10%
Voh
90%Vs
52.0MHz
HCMOS 15pF Vol
10%Vs
12.0MHz to 3.0V10%
1)
Clipped
-
-
-
CFPT-9302
Vpk-pk
0.8V
52.0MHz
Sinewave
10k//10pF
Note 1): Parts will operate correctly with ±10% supply voltage variation but supply coefficient (see page 1) is measured with
±5% variation
Frequency Stability Available Over Operating Temperature Ranges
Operating
Frequency Stability vs Operating Temperature Range
Temperature
0.2ppm
0.3ppm
0.5ppm
Ranges
-20 to 70C
-40 to 85C
Ordering Example
Code MS
2)
-
Code AS
2)
Code AX
2)
14.4MHz
Code ES
Code EX
2)
CFPT-9301
1.0ppm
Code FS
Code FX
FX A
2.0ppm
Code GS
Code GX
Frequency
Model No
Frequency Stability vs Operating Temperature Code
Frequency Adjustment Code
Note 2): Codes may not be available for all frequencies
Minimum Order Information Required
Frequency + Model Number + Frequency Stability vs Operating Temperature Range Code + Frequency Adjustment
Code
OR
Discrete Part Number (ExxxxLF)
Custom Specifications
Non-standard requirements like high drive ACMOS output, low harmonic sinewave output, low profile outline, different supply
and control voltages, high frequency pulling, different stabilities and temperature ranges may be available upon request.
Please contact our sales office to discuss your requirements.
www.rakon.com
Test/Measurement
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